Related Clues:
- Sounded like a new engine
- Expressed wonder
- Sounded content
- Sounded smooth
- Made contented sound of cat
- Expressed content in feline fashion
- Made a feline sound
- Made sound like contented cat
- Was happy, by the sound of it
- Sounded contented (when stroked?)
- Vocalized feline bliss
- Harrow head expressed surprise
- Ran smoothly, as an engine
- Made sounds like a shorthair
- Showed appreciation for being scratched behind the ears, may